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IPA: Vowels
Front Central Back Close i y ɨ ʉ ɯ u Near-close ɪ ʏ ʊ Close-mid e ø ɘ ɵ ɤ o Mid e̞ ø̞ ə ɤ̞ o̞ Open-mid ɛ œ ɜ ɞ ʌ ɔ Near-open æ ɐ Open a ɶ ä ɑ ɒ
IPA help  audio full chart template Legend: unrounded • rounded

A back vowel is any in a class of vowel sound used in spoken languages. The defining characteristic of a back vowel is that the highest point of the tongue is positioned relatively back in the mouth without creating a constriction that would be classified as a consonant. Back vowels are sometimes also called dark vowels because they are perceived as sounding darker than the front vowels.

Near-back vowels are essentially a type of back vowels; no language is known to contrast back and near-back vowels based on backness alone.

The category "back vowel" comprises both raised vowels and retracted vowels.

Articulation

In their articulation, back vowels do not form a single category, but may be either raised vowels such as or retracted vowels such as .

Partial list

The back vowels that have dedicated symbols in the International Phonetic Alphabet are:

• close back unrounded vowel
• close back protruded vowel
• near-close back protruded vowel
• close-mid back unrounded vowel
• close-mid back protruded vowel
• open-mid back unrounded vowel
• open-mid back rounded vowel
• open back unrounded vowel
• open back rounded vowel

There also are back vowels that do not have dedicated symbols in the IPA:

• close back compressed vowel or
• near-close back unrounded vowel or
• near-close back compressed vowel or
• close-mid back compressed vowel or
• mid back unrounded vowel or
• mid back rounded vowel or

As here, other back vowels can be transcribed with diacritics of relative articulation applied to letters for neighboring vowels, such as ⟨u̞⟩, ⟨o̝⟩ or ⟨ʊ̠⟩ for a near-close back rounded vowel.

Occurrence

According to PHOIBLE, the most common phonemic back vowel is /u/, occurring in approximately 88% of languages, while the most uncommon phonemic back vowel is /ɒ/, occurring in only 2% of recorded inventories.

See also

• Front vowel
• Central vowel
• List of phonetics topics
• Relative articulation

References

1. Tsur, Reuven (February 1992). The Poetic Mode of Speech Perception. Duke University Press. p. 20. ISBN 978-0-8223-1170-6.
2. Scott Moisik, Ewa Czaykowska-Higgins, & John H. Esling (2012) "The Epilaryngeal Articulator: A New Conceptual Tool for Understanding Lingual-Laryngeal Contrasts"
3. Steven Moran and Daniel McCloy, ed. (2019). PHOIBLE 2.0. Jena: Max Planck Institute for the Science of Human History.

v t e International Phonetic Alphabet (chart)
IPA topics IPA International Phonetic Association History of the alphabet Extensions for disordered speech (extIPA) Voice Quality Symbols (VoQS) Journal of the IPA (JIPA) Special topics Cursive forms Case variants Obsolete and nonstandard symbols Naming conventions Sinological extensions World Orthography IPA chart for English dialects Encodings ASCII encodings SAMPA X-SAMPA Kirshenbaum TIPA Phonetic symbols in Unicode IPA number IPA Braille
Consonants Pulmonic consonants Place → Labial Coronal Dorsal Laryngeal Manner ↓ Bi­labial Labio­dental Linguo­labial Dental Alveolar Post­alveolar Retro­flex Palatal Velar Uvular Pharyn­geal/epi­glottal Glottal Nasal m̥ m ɱ̊ ɱ n̼ n̥ n ɳ̊ ɳ ɲ̊ ɲ ŋ̊ ŋ ɴ̥ ɴ Plosive p b p̪ b̪ t̼ d̼ t d ʈ ɖ c ɟ k ɡ q ɢ ʡ ʔ Sibilant affricate ts dz t̠ʃ d̠ʒ tʂ dʐ tɕ dʑ Non-sibilant affricate pɸ bβ p̪f b̪v t̪θ d̪ð tɹ̝̊ dɹ̝ t̠ɹ̠̊˔ d̠ɹ̠˔ cç ɟʝ kx ɡɣ qχ ɢʁ ʡʜ ʡʢ ʔh Sibilant fricative s z ʃ ʒ ʂ ʐ ɕ ʑ Non-sibilant fricative ɸ β f v θ̼ ð̼ θ ð θ̠ ð̠ ɹ̠̊˔ ɹ̠˔ ɻ̊˔ ɻ˔ ç ʝ x ɣ χ ʁ ħ ʕ h ɦ Approximant ʋ ɹ ɻ j ɰ ʔ̞ Tap/flap ⱱ̟ ⱱ ɾ̼ ɾ̥ ɾ ɽ̊ ɽ ɢ̆ ʡ̆ Trill ʙ̥ ʙ r̥ r ɽ̊r̥ ɽr ʀ̥ ʀ ʜ ʢ Lateral affricate tɬ dɮ tꞎ d𝼅 c𝼆 ɟʎ̝ k𝼄 ɡʟ̝ Lateral fricative ɬ ɮ ꞎ 𝼅 𝼆 ʎ̝ 𝼄 ʟ̝ Lateral approximant l ɭ ʎ ʟ ʟ̠ Lateral tap/flap ɺ̥ ɺ 𝼈̥ 𝼈 ʎ̆ ʟ̆ IPA help  audio full chart template Symbols to the right in a cell are voiced, to the left are voiceless. Shaded areas denote articulations judged impossible. Non-pulmonic consonants BL LD D A PA RF P V U EG Ejective Stop pʼ tʼ ʈʼ cʼ kʼ qʼ ʡʼ Affricate p̪fʼ t̪θʼ tsʼ t̠ʃʼ tʂʼ tɕʼ kxʼ qχʼ Fricative ɸʼ fʼ θʼ sʼ ʃʼ ʂʼ ɕʼ xʼ χʼ Lateral affricate tɬʼ c𝼆ʼ k𝼄ʼ q𝼄ʼ Lateral fricative ɬʼ Click (top: velar; bottom: uvular) Tenuis kʘ qʘ kǀ qǀ kǃ qǃ k𝼊 q𝼊 kǂ qǂ Voiced ɡʘ ɢʘ ɡǀ ɢǀ ɡǃ ɢǃ ɡ𝼊 ɢ𝼊 ɡǂ ɢǂ Nasal ŋʘ ɴʘ ŋǀ ɴǀ ŋǃ ɴǃ ŋ𝼊 ɴ𝼊 ŋǂ ɴǂ ʞ   Tenuis lateral kǁ qǁ Voiced lateral ɡǁ ɢǁ Nasal lateral ŋǁ ɴǁ Implosive Voiced ɓ ɗ ᶑ ʄ ɠ ʛ Voiceless ɓ̥ ɗ̥ ᶑ̊ ʄ̊ ɠ̊ ʛ̥ IPA help  audio full chart template Co-articulated consonants Nasal n͡m Labial–alveolar ɳ͡m Labial–retroflex ŋ͡m Labial–velar Plosive t͡pd͡b Labial–alveolar ʈ͡pɖ͡b Labial–retroflex k͡pɡ͡b Labial–velar q͡ʡ Uvular–epiglottal q͡p Labial–uvular Fricative/approximant ɥ̊ɥ Labial–palatal ʍw Labial–velar ɧ Sj-sound (variable) Lateral approximant ɫ Velarized alveolar Implosive ɠ̊͜ɓ̥ ɠ͡ɓ Labial–velar Ejective t͡pʼ Labial–alveolar IPA help full chart template Other Nasal labial–velar approximant Nasal palatal approximant Voiceless bidental fricative Voiceless bilabially post-trilled dental stop Voiceless nasal glottal approximant Voiceless upper-pharyngeal plosive Voiced upper-pharyngeal plosive Bilabial percussive Bidental percussive Sublaminal lower-alveolar percussive
Vowels Front Central Back Close i y ɨ ʉ ɯ u Near-close ɪ ʏ ʊ Close-mid e ø ɘ ɵ ɤ o Mid e̞ ø̞ ə ɤ̞ o̞ Open-mid ɛ œ ɜ ɞ ʌ ɔ Near-open æ ɐ Open a ɶ ä ɑ ɒ IPA help  audio full chart template Legend: unrounded • rounded

• Vowels by backness